Efficacy of LSVT-LOUD Therapy on Voice, Speech, and Quality of Life in Parkinson's Disease
The Effect of Lee Silverman Voice Therapy-LOUD (LVST-LOUD) Therapy Method on Voice and Speech Skills and Examination of Therapy Experiences in Turkish-Speaking Individuals With Parkinson's Disease
Atlas University
24 participants
Feb 18, 2026
INTERVENTIONAL
Conditions
Summary
Parkinson's disease often causes speech and voice impairments, such as reduced vocal loudness and decreased speech intelligibility, which significantly impact the quality of life for patients and their families. The Lee Silverman Voice Therapy-LOUD (LSVT-LOUD) is a specialized, evidence-based speech therapy protocol designed to improve vocal function. This study investigates the effectiveness of the LSVT-LOUD protocol in Turkish-speaking individuals with Parkinson's disease. The research evaluates objective changes in vocal loudness and speech quality, as well as the subjective therapy experiences of participants. By analyzing both clinical outcomes and patient feedback, this study aims to contribute to the clinical application and adaptation of LSVT-LOUD for the Turkish-speaking population
Eligibility
Plain Language Summary
Simplified for easier understanding
This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.
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Interventions
The LSVT-LOUD protocol is a structured, intensive speech treatment specifically designed for individuals with Parkinson's disease. The intervention follows a standardized format: 4 individual 60-minute sessions per week for 4 consecutive weeks (total of 16 sessions). The core exercises include: Daily Tasks: Sustained phonation (holding 'ah' at a loud, stable pitch), pitch range exercises (high and low), and maximum duration of vowel phonation. Functional Speech Tasks: Practicing high-effort vocalization using functional phrases, sentences, and hierarchical reading/conversation tasks in clinical sessions. Carryover Exercises: Daily homework and 'real-world' assignments to facilitate the generalization of increased vocal loudness and speech quality into everyday life. The therapy emphasizes high-effort motor output, sensory recalibration (helping the patient perceive their 'loud' voice as normal), and intensive repetition to maximize neuroplasticity and therapeutic outcomes.
Locations(1)
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NCT07730073